Depends on what you mean by "better future". If you're talking about adoption, then Ripple could beat ETH in that regard sonner than we thought since Ripple's Xrapid platform could be adopted by the banks around the world for cross-border payments. But if you're talking about prices as in which one can give a better ROI in the short-term or long-term, I'd go with both, that way I won't miss out profits from either.